Cisco 350 Series Administration Manual page 387

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STEP 1
STEP 2
STEP 3
STEP 4
STEP 1
300
DHCP Snooping Along With DHCP Relay
If both DHCP Snooping and DHCP Relay are globally enabled, then if DHCP Snooping is
enabled on the client's VLAN, DHCP Snooping rules contained in the DHCP Snooping
Binding database are applied, and the DHCP Snooping Binding database is updated in the
client's and DHCP server's VLAN, for packets that are relayed.
DHCP Default Configuration
The following describes DHCP Snooping and DHCP Relay default options.
Option
DHCP Snooping
Option 82 Insertion
Option 82 Passthrough
Verify MAC Address
Backup DHCP Snooping Binding
Database
DHCP Relay
Configuring DHCP Work Flow
To configure DHCP Relay and DHCP Snooping:
Enable DHCP Snooping and/or DHCP Relay in the
Define the interfaces on which DHCP Snooping is enabled in the
Configure interfaces as trusted or untrusted in the
Optional. Add entries to the DHCP Snooping Binding database in the
Binding Database page.
Properties
To configure DHCP Relay, DHCP Snooping and Option 82:
Click IP Configuration > IPv4 Management and Interfaces >DHCP Snooping/Relay >
Properties.
Enter the following fields:
• Option 82—Select Option 82 to insert Option 82 information into packets.
Default State
Disabled
Not enabled
Not enabled
Enabled
Not enabled
Disabled
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
IPv4 Management and Interfaces
Properties page.
Interface Settings
DHCP Snooping Trusted Interfaces
DHCP Snooping
IP Configuration
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